Print Overview Achilles tendon rupture Enlarge image Close Achilles tendon rupture Achilles tendon rupture The Achilles tendon is a strong cord that joins the muscles in the back of the calf to the heel bone. Stretching the tendon too far can cause it to tear, called a rupture. Achilles (uh-KILL-eez) tendon rupture is an injury that affects the tendon in the back of the lower leg. It mainly happens while playing sports, especially jumping sports, for fun. But it can happen to anyone. The Achilles tendon is a strong fibrous cord that joins the muscles in the back of the calf to the heel bone. Stretching the Achilles tendon too far can make it tear partway or all the way. The tear is called a rupture. The Achilles tendon helps with pointing the foot downward, rising on the toes and pushing off on the foot while walking. People use their Achilles tendons every time they walk and move their feet. If the Achilles tendon ruptures, there may be a pop, then a sharp pain in the back of the ankle and lower leg. This is likely to make walking hard. Many people have surgery to repair the tear. But for many people, treatment without surgery works just as well. Products & ServicesA Book: Mayo Clinic Family Health BookMayo Clinic Sports MedicineNewsletter: Mayo Clinic Health Letter — Digital EditionNSF Certified for Sport Nutritional SupplementsShow more products from Mayo Clinic SymptomsSome people have no symptoms with an Achilles tendon rupture. But most people: Have a feeling of having been kicked in the calf. Have sharp pain and swelling near the heel. Find it hard to bend the foot downward or "push off" the injured foot when walking. Find it hard to stand on the toes on the injured foot. Hear a popping or snapping sound at the time of the injury. When to see your doctorTalk with a healthcare professional right away if you hear a pop in your heel, especially if it's hard to walk after that. Request an appointment There is a problem with information submitted for this request. Review/update the information highlighted below and resubmit the form. From Mayo Clinic to your inbox Sign up for free and stay up to date on research advancements, health tips, current health topics, and expertise on managing health. Click here for an email preview. Email Address 1 ErrorEmail field is required ErrorInclude a valid email address Learn more about Mayo Clinic’s use of data. We use the data you provide to deliver you the content you requested. To provide you with the most relevant and helpful information, we may combine your email and website data with other information we have about you. If you are a Mayo Clinic patient, we will only use your protected health information as outlined in our Notice of Privacy Practices. You may opt out of email communications at any time by clicking on the unsubscribe link in the email. Subscribe! Thank you for subscribing! You'll soon start receiving the latest Mayo Clinic health information you requested in your inbox. Sorry something went wrong with your subscription Please, try again in a couple of minutes Retry CausesThe cause of Achilles tendon rupture is often an injury that puts sudden force on the Achilles tendon. It can happen from: Jumping or sharp cutting and pivoting in a sport. Falling from a height or landing from a jump. Stepping into a hole. Risk factorsFactors that may raise the risk of Achilles tendon rupture include: Age. The peak age for Achilles tendon rupture is 30 to 40. Sex assigned at birth. People assigned male at birth are up to five times more likely to have Achilles tendon rupture than are people assigned female at birth. Sports played for fun. Achilles tendon injuries happen more often during sports that involve running, jumping, and sudden starts and stops. These include soccer, basketball, volleyball and tennis. Steroid shots. Healthcare professionals sometimes inject steroids into an ankle joint to reduce pain and swelling. But steroid medicines can weaken nearby tendons. They've been linked to Achilles tendon ruptures. Certain antibiotics. Fluoroquinolone antibiotics, such as ciprofloxacin (Cipro) or levofloxacin, raise the risk of Achilles tendon rupture. Obesity. Excess weight puts more strain on the tendon. Prevention Calf stretch exercise Enlarge image Close Calf stretch exercise Calf stretch exercise The Achilles tendon links the muscles in the back of the leg to the heel bone. This calf stretch exercise can help prevent an Achilles tendon rupture. To do the stretch, follow these steps: 1. Stand at arm's length from a wall or a chair. Put your palms flat against the wall or hold on to the chair. 2. Keep one leg back with your knee straight and your heel flat on the floor. 3. Slowly bend your elbows and front knee and move your hips forward until you feel a stretch in your calf. 4. Hold for 30 to 60 seconds. 5. Switch legs and repeat with the other leg. To reduce your chance of having Achilles tendon issues follow these tips: Stretch and strengthen calf muscles. Stretch your calf muscles until you feel a pull, but not pain. Don't bounce during a stretch. Calf-strengthening exercises also can help the muscle and tendon take on more force and protect against injury. Vary your exercises. Mix high-impact sports, such as running, with low-impact sports, such as walking, biking or swimming. Limit activities that put a lot of stress on your Achilles tendons, such as activities that involve hill running and jumping. Choose safer running surfaces. Don't run on hard or slippery surfaces. Wear athletic shoes that fit well and have good cushioning. Add to your training slowly. Achilles tendon injuries often happen after training harder or all of a sudden. Add to how long, how far, how hard and how often you train by no more than 10% a week. By Mayo Clinic Staff Request an appointment Diagnosis & treatment May 27, 2026 PrintShow references Maughan KL, et al. Achilles tendon rupture. https://www.uptodate.com/contents/search. Accessed Feb. 19, 2025. Achilles tendon rupture. American Academy of Orthopaedic Surgeons. https://orthoinfo.aaos.org/en/diseases--conditions/achilles-tendon-rupture-tear/. Accessed Feb. 19, 2025. Amendola F, et al. The acute Achilles tendon rupture: An evidence-based approach from the diagnosis to the treatment. Medicina. 2022; doi:10.3390/medicina58091195. Functional rehabilitation. American Academy of Physical Medicine and Rehabilitation. https://www.aapmr.org/about-physiatry/conditions-treatments/musculoskeletal-medicine/functional-rehabilitation. Accessed Feb. 19, 2025. Myhrvold SB, et al. Nonoperative or surgical treatment of acute Achilles' tendon rupture. New England Journal of Medicine. 2022: doi:10.1056/NEJMoa2108447. Callahan LR, et al. Running injuries of the lower extremities in adults: Risk factors and prevention. https://www.uptodate.com/contents/search. Accessed Feb. 20, 2025. Coopmans L, et al. Accelerated rehabilitation in non-operative management of acute Achilles tendon ruptures: A systematic review and meta-analysis. The Journal of Foot & Ankle Surgery. 2022; doi:10.1053/j.jfas.2021.07.007. Related Achilles tendon rupture Calf stretch exercise Associated Procedures MRI Products & Services A Book: Mayo Clinic Family Health Book Mayo Clinic Sports Medicine Newsletter: Mayo Clinic Health Letter — Digital Edition NSF Certified for Sport Nutritional Supplements Show more products and services from Mayo Clinic Achilles tendon ruptureSymptoms&causesDiagnosis&treatmentDoctors&departments Advertisement Mayo Clinic does not endorse companies or products. 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There is a problem with information submitted for this request. Review/update the information highlighted below and resubmit the form. From Mayo Clinic to your inbox Sign up for free and stay up to date on research advancements, health tips, current health topics, and expertise on managing health. Click here for an email preview. Email Address 1 ErrorEmail field is required ErrorInclude a valid email address Learn more about Mayo Clinic’s use of data. We use the data you provide to deliver you the content you requested. To provide you with the most relevant and helpful information, we may combine your email and website data with other information we have about you. If you are a Mayo Clinic patient, we will only use your protected health information as outlined in our Notice of Privacy Practices. You may opt out of email communications at any time by clicking on the unsubscribe link in the email. Subscribe! Thank you for subscribing! You'll soon start receiving the latest Mayo Clinic health information you requested in your inbox. Sorry something went wrong with your subscription Please, try again in a couple of minutes Retry